Original catalogue drawing - Timken TRB Catalog, page 264
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
73.025
2.875
D
Outside diameter
139.992
5.5115
B
Inner-ring / bearing width
36.098
1.4212
T
Overall assembly width
36.512
1.4375
C
Cup / outer-ring width
28.575
1.125
r
Chamfer (min)
3.3
0.1299
Notes
Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
73.025
Bore d (in)
2.8750
Outside dia. D (mm)
139.992
Outside dia. D (in)
5.5115
Width B (mm)
36.098
Overall width T (mm)
36.512
Overall width T (in)
1.4375
Cup width C (mm)
28.575
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
46500
Basic static load rating Cor (lbs)
65400
Basic dynamic load rating Cr (N)
207000
Basic static load rating C0r (N)
291000
Dynamic rating C1 (N, ISO)
207000
Dynamic rating C1 (lbf, ISO)
46500
Radial rating C90 (N)
53600
Radial rating C90 (lbf)
12100
Thrust rating Ca90 (N)
37100
Thrust rating Ca90 (lbf)
8330
Static rating C0 (N)
291000
Static rating C0 (lbf)
65400
Factor e
0.40
Factor Y
1.49
Factor K
1.45
Geometry factor G1
125.7
Geometry factor G2
32.0
Geometry factor Cg
0.1295
Effective load centre a (mm)
-5.3
Weight
Weight (kg)
2.46
Cup weight (kg)
0.77
Mounting dimensions (fillets / shoulders)
Shaft fillet R max (mm)
3.5
Housing fillet r max (mm)
3.3
Shaft shoulder da (mm)
83.0
Shaft shoulder db (mm)
90.0
Housing shoulder Da (mm)
133.0
Housing shoulder Db (mm)
125.0
Cage projection Aa (mm)
3.4
Cage projection Ab (mm)
1.9
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
51,750
102
3,386
6
34,500
392
13,083
8
25,875
1,024
34,133
10
20,700
2,154
71,814
15
13,800
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 207,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
Timken
Source catalogue
Timken Tapered Roller Bearing Catalog (2016)
Catalogue page
p.264 (dimensions) / p.38 (cup)
Series type
TS
ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
